Sunday, October 17, 2010
blog 2
I - SEARCH ENGINES
Advantages:
o The first and foremost advantage is that it helps you in increasing the traffic to your website via various search-engines by improving the visibility of your website to the public.
o The other big advantage with search-engine-optimization is that you need not spend any of your valuable money to improve the traffic to your website; after all organic SEO is the best way of obtaining a permanent and long standing website. So, I consider this as the biggest advantage with search engine optimization. You earn without spending. In short, SEO is more affordable than any other means of improving website traffic.
Disadvantages:
o The biggest disadvantage is that only technical geeks can have the mastery over this. The concept of search engine optimization is to provide the relevant topics to the user who types in the particular word/phrase/sentence. So the owner of the website must be clever and capable enough to understand these things and move accordingly. He/she has to out think the public and create keywords that are used frequently by most users.
http://ezinearticles.com/?Advantages-and-Disadvantages-of-Search-Engine-Optimization&id=3667244
II - INDIVIDUAL SEARCH ENGINES AND META SEARCH ENGINES
Both are search tools/software.
However
individual search engine
searches for a topic of your choice and returns matches. Search engine is often used synonymously with spider and index. A spider or web crawler is the software that scans documents and adds them to a search engine's index by following links, examples:
searches for a topic of your choice and returns matches. Search engine is often used synonymously with spider and index. A spider or web crawler is the software that scans documents and adds them to a search engine's index by following links, examples:
- Yahoo
- Bing - (Formerly MSN Live)
- Google Scholar
- AOL Search
- Ask
while;
meta search engines
These search engines are useful if you need to run a comprehensive search quickly across a number of different engines, to compare results or to suggest search engines that you may not have tried before. The majority do a Google, Yahoo, MSN, Ask search (GYMA, or GYM search depending), but there are differences./ It sends user requests to several other search engines and/or databases and aggregates the results into a single list or displays them according to their source. Metasearch engines enable users to enter search criteria once and access several search engines simultaneously. Metasearch engines operate on the premise that the Web is too large for any one search engine to index it all and that more comprehensive search results can be obtained by combining the results from several search engines.
These search engines are useful if you need to run a comprehensive search quickly across a number of different engines, to compare results or to suggest search engines that you may not have tried before. The majority do a Google, Yahoo, MSN, Ask search (GYMA, or GYM search depending), but there are differences./ It sends user requests to several other search engines and/or databases and aggregates the results into a single list or displays them according to their source. Metasearch engines enable users to enter search criteria once and access several search engines simultaneously. Metasearch engines operate on the premise that the Web is too large for any one search engine to index it all and that more comprehensive search results can be obtained by combining the results from several search engines.
examples:
- Brainboost
- ChunkIt!
- Clusty
- Dogpile
- Excite
- Harvester42
- HotBot
- Info.com
- Ixquick
- Kayak
- LeapFish
- Mamma
- Metacrawler
http://en.wikipedia.org/wiki/Metasearch_engine
http://www.mesacc.edu/library/engines.html
III - When to use:
*Search Engine
You know what you're looking for, and can describe it with some key words or phrases.
Google is always a good bet, since it has the largest index
Yahoo Search is the second most popular keyword search engine
Bing may provide results if the other two don't work
Exalead is an excellent choice and makes a change from the big 3
*Search/Subject Directory
These search engines arrange data in hierachies from broad to narrow.
Good if you need an overview of a subject or you're not entirely sure of what you want.
Yahoo Directory provides 14 main categories
Google Directory provides access to 16 main categories
Virtual libraries from Pinakes. Drill down for the content/sites you need
The Open Directory Project provides access to 16 main categories.
Yahoo Directory provides 14 main categories
Google Directory provides access to 16 main categories
Virtual libraries from Pinakes. Drill down for the content/sites you need
The Open Directory Project provides access to 16 main categories.
A subject directory is a catalog of sites collected and organized by humans.Subject directories are often called subject "trees" because they start with a few main categories and then branch out into subcategories, topics, and subtopics.
To find the homepage for the Atlanta Braves at Yahoo!, for example, select "Recreation & Sports" at the top level, "Sports" at the next level, "Baseball" at the third level, "Major League Baseball" at the fourth level, "Teams" at the fifth level, then finally "Atlanta Braves."
http://www.philb.com/whichengine.htm
http://www.learnwebskills.com/search/subject.html
how to register for a Paypal Account
- go to Paypal account registration page. click sign up. then choose your account type.
- enter your information
- confirm your email address to activate your account
types of account:
- personal - for individuals who sell and shop online
- premiere - for individuals whoe sell and wants to get paid online
- business - for merchants who operate under a group/company name
Friday, October 1, 2010
google docs! exer 7
New Procedure Opens Arteries after Angioplasty
Cardiologists and radiologists at Mary Mercy Hospital today at 1:30 pm will perform a procedure they think may be the answer to restenosis, the renarrowing of coronary arteries after angioplasty. Beta radiation will be used to reduce thickened vessel tissue that is sealing off vital blood flow to the heart. The procedure has been perfected in academic medical centers and is being offered for the first time in Washington State.
Angioplasty vs Angioplasty Plus Beta Radiation
Number of Patients and Characteristics | Angioplasty Data | |
| | Angioplasty Alone | Angioplasty Plus Beta Radiation |
| 1,587,000 patients with blocked arteries | 900,000 | 100,000 |
| 5 year survival rate | 80% | 94% |
| Cost per procedure | $7500 | $8500 |
Angioplasty, the process of inserting a tiny balloon into an artery leading to the heart in order to push out the plaque that is reducing blood flow, and therefore oxygen, to the heart, often fails over time as the artery walls renarrow in about 20 percent of the patients. The new therapy uses Beta radiation pellets left within the vessel for three to five minutes. The vessel tissues absorb radiation which prevents thickening of the walls. The risk of employing the treatment is low, as the beta source radiation used in this procedure amounts to one percent of radiation exposure from a chest X-ray.
- It is less costly than other heart surgery
- It is a more appropriate use of technology (for those patients who are suitable for the procedure)
- It causes less discomfort to the patient.
"Mary Mercy hospital staff are excited about using this new technique both because of the increased survival rate for patients and because the procedure adds such a small amount to the cost of the procedure," says Dr. Mignon Evers, Mary Mercy's Medical Director.
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